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(No Model.) 2 Sheets-Sheet 1.

H. OOKER.

, STEAM GRAIN DRIER.

No. 249,009. Patented Nov. 1,\1-881: -7

X 8 W 1 v WITNESSES INVENTOR:

/fiflywww BY M ATTORNEYS.

N. PETERS. mmmho u her. Wulnnglon '1' c (No Model.) 2 Sheets-Sheet- 2.

GOKER.

STEAM GRAIN DRIER.

Patented Nov. 1, 1881.

WITNESSES! l INVENTOR ATTORNEYS.

N4 PETERS, Pholohlhngnphfln Washington. D. C.

UNliTED S ra ens PATENT Greece.

HENRY (JOKER, OF lNDIANAPOLIS, INDIANA.

STEAM GRAlN-DRI ER.

SPECIFICATION forming part of Letters Patent No. 249,009, dated November1, 1881.

Application filed August 27, 1881.

To all whom 115 may concern Be it known that I, HENRY (JOKER, oflndia-napolis, in the county of Marion and State oflndiana, haveinvented a new and Improved Steam Grain-Drying Apparatus, of which thefollowing is a full, clear, and exact specification.

Figure 1, Sheet 1, is a side elevation, partly in section, of myimprovement. Fig. 2, Sheet 1, is an end elevation of the same. Fig. 3,Sheet1,is asectionalend elevation of the same, taken through the line 00m, Fig. 1. Fig. 4, Sheet 2, is a side elevation, partly in section, ofthe center drum or band, the gear-wheel being removed. Fig. 5, Sheet 2,is a cross-section of a part of the same, taken through the line y y,Fig. 4. Fig.6, Sheet 2, is a cross-section of a part of one of the enddrums. Fig. 7, Sheet 2, is a plan view of a part of the outercylinder-shell. Fig. 8, Sheet 2, is a sectional side elevation, showinga cooling-cylinder connected therewith. -Fig. 9'represcnts alongitudinal section of a modification of the dryingcylinders.

Similar letters of reference indicate corresponding parts.

The object of this invention is to facilitate the drying of grain andother substances.

A is the frame of the machine, to the crossbars of which are attachedbrackets 13. To the brackets B are journaled flanged wheels 0, uponwhich rest the drums or bands D, the flanges of the said wheels restingagainst the lower edges of the said drums D and keeping them in place.Upon the inner or concave sides of the drums D are formed pairs of lugsor flanges E, to and between which are secured longitudinal bars F. Thedrums D and bars F thus form skeleton-cylinders, which are covered withperforated sheet metal or wire-cloth, G, to allow the air to passthrough freely and carry 0% the moisture expelled from the grain orother substance being dried.

To the inner edges of the longitudinal bars or ribs F are attachedplates H, which project at the forward sides of the said bars or ribs,forming buckets that raise the grain from the lower part of thecylinder, carry it up to the upper part of the said cylinder, and thendischargeit in a shower, so that every kernel will be fully exposed tothe heated air risingthrough the said cylinder. The drying-cylinders are(No model.)

arranged in inclined positions, so that the grain will gradually workits way from the upper to the lower ends of the said cylinders; or thesame thing can be accomplished by making the cylinders conical.

One, two, or more cylinders can be used in each machine, and when morethan one are used they are placed one above the other and are inclinedin opposite directions, the lower end of each upper cylinder being overthe upper end of the next lower cylinder, so that the grain can beconducted from the lower end of each upper cylinder into the upper endof the next lower cylinder.

To the central drum or band, D, is attached, or upon it is formed, agear-wheel, I, into the teeth of which mesh the teeth of a small gearwheel, J, attached to the inner end of a shaft, K. The shaft Krevolvesin bearings attached to the frame A, and to its projecting outer end isattached a pulley, L, or gearwheel, to which rotation can be given froma steam-engine or other convenient power. In case two cylinders areused, one above the other, they can both be driven by the samegear-wheel J, as shown in Fig. 1.

Within each cylinder D E F G H, and concentric therewith, is placed asteam tight 1101- low cylinder, M, made of sheet-iron or other suitablematerial. The inner cylinder, M, is made longer than the outer cylinder,D E F Gr .11, and projects at both ends, so that the said projectin gends can be attached to the frames N, by which the said cylinders M aresupported, and which are attached to the floor of the room or to theframe A. With this construction the inner cylinders are stationary, andthe material to be dried is in the space between the inner and outercylinders, and is continually being raised by the buckets of the saidouter cylinder and being poured in a shower upon the said innercylinder. 7

The cylinders M can be heated to dry the grain by steam or hot air,which is introduced into the upper end of thelower cylinder through apipe, 0, is conducted from the lower end of the lower cylinder to theupper vend of the upper cylinder through a pipe, P, and escapes from thelower end of the upper cylinder into the air through the pipe Q.

The water of condensation escapes from the lowerends of the cylindersMthrough the pipes R, and may be returned to the hot-water tank andpumped back into the boiler as distilled water. The grain or othermaterial to be dried is introduced into the upper end of the uppercylinder D E F G H through the hopper S and spout T, which spout T isextended in an inclined direction through the heating-cylinder M anddischarges the grain upon the lower part of the said cylinder D E F G H.The grain is conducted from the lower end of the upper cylinder into theupper end of the lower cylinder through a hopper, S, and spout T, in thesame manner as it was introduced into the said upper cylinder, the spoutT extending down through the heating-cylinder M in an inclineddirection.Viththisconstruction,should the drier be stopped while the graincontinues to flow,the said grain will bank up at'the lower ends of thespouts T T, and its escape into the cylinders will be stopped to preventit from flowing down through the said cylinders and escaping withoutbeing thoroughly dried.

From the lower end of the lower cylinder D E F G H the dried grain p:sses through a hopper, S and spout '1 into a cylinder, U, placed belowthe said lower cylinder in an inclined position, and which may be madeclose or perforated, as may be desired, and through which a strong blastof cold air will be drawn by an exhaust-fan connected with the upper endof the said cylinder, so that the grain will-be cooled, and all the dustand other impurities removed from the kernels will be drawn out, andthus separated from the grain. \Vith this construction the friction ofthe kernels of grain upon each other and upon the surfaces of thecylinders will rub oftany mold, dust, or other impurities that mayadhere to the kernels, so that the grain when discharged will be brightand clear and in good condition for market or shipment.

I am aware that it is not new in driers to combine a hot-air chamberwith a series of hollow cylinders, or to combine buckets with aperforated cylinder, so that the grain is passed in a continuous streamthrough acurrent of air, or to make a shaft hollow at one end to receivesteam and perforated at the other end to discharge the water ofcondensation, the head being cast with one or more chambers connectingwith the steam supply and the circulation pipes; but

What I claim as new and of my invention is 1. In a steam grain-dryingapparatus, the drying-cylinder constructed substantially as herein shownand described, and consisting of the drutns D, havinginwardly-projecting pairs of lugs E, the ribs F, having flanges H, andthe perforated cover G, as set forth.

2. In a steam grain-drying apparatus, the combination, with the drums D,having inwardly-projecting pairs of lugs E, the perforated cover G, andthe ribs F, of the flanges H, substantially as herein shown anddescribed, whereby the grain will be carried to the upper part of thesaid cylinder and discharged in a shower, as set forth.

3.-In a steam grain-(laying apparatus, the combination, with the frame Aand the dryingcylinder D E F G H, of the flanged wheels 0, thegear-wheels I J, and the driving-shalt K, substantially as herein shownand described, whereby the said drying-cylinder can be readily rotated,as set forth.

4. In a steam grain-drying apparatus, the combination, with the frame Aand the rotating drying-cylinder D E F Gr H,'0f the stationary interiorheating-cylinder, M, and its supporting-frames N, substantially asherein shown and described, whereby the grain will be dried evenly whilepassing through the said dryingcylinder, as set forth.

5. In a steam grain-drying apparatus, the cotnbination, with the rotarydrying-cylinder D E 1* G II and the stationary heating-cylinder M, ofthe inlet-spout '1, arranged to pass through the said heating-cylinder,substantially as herein shown and described, whereby the grain will beintroduced into the lower part of the dtying-cylinder, and will bestopped automatically should the movement of the drying-cylinder cease,as set forth.

HENRY (JOKER.

Witnesses:

RrcI-I. L. BoYn, W. A. HAUGII.

